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Dome light and Ignition Ring light constantly on.

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Old 24 April 2013, 08:15 PM
  #31  
Fonzey
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I can't see any visible damage.



I'm assuming it's some kind of software issue. The unit clearly has some basic programming to execute the relevant actions of the central locking, interior lighting and seatbelt buzzer (apparently ).

I wonder if the temporary short (i'm assuming the root cause of all of this is that we managed to short something with a screwdriver or something during the change) was enough to wipe a non-volatile memory chip or something.

I'm sort of making this up as I go along - but I can't think of anything else, for the cost of a second hand unit - it's really not worth any further investigation tbh!
Old 24 April 2013, 09:21 PM
  #32  
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Originally Posted by Fonzey
I can't see any visible damage.



I'm assuming it's some kind of software issue. The unit clearly has some basic programming to execute the relevant actions of the central locking, interior lighting and seatbelt buzzer (apparently ).

I wonder if the temporary short (i'm assuming the root cause of all of this is that we managed to short something with a screwdriver or something during the change) was enough to wipe a non-volatile memory chip or something.

I'm sort of making this up as I go along - but I can't think of anything else, for the cost of a second hand unit - it's really not worth any further investigation tbh!
Yeah mine had no signs of damage to any circuitry...Strange. But as you say, cheap enough to pick up used.
Old 08 January 2014, 10:20 AM
  #33  
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Originally Posted by Fonzey
I can't see any visible damage.



I'm assuming it's some kind of software issue. The unit clearly has some basic programming to execute the relevant actions of the central locking, interior lighting and seatbelt buzzer (apparently ).

I wonder if the temporary short (i'm assuming the root cause of all of this is that we managed to short something with a screwdriver or something during the change) was enough to wipe a non-volatile memory chip or something.

I'm sort of making this up as I go along - but I can't think of anything else, for the cost of a second hand unit - it's really not worth any further investigation tbh!
Hope this helps someone else... under close inspection the centre pin on the transistor at the top left near the harness sockets is burned out... I'll upload images shortly to help...
Old 08 January 2014, 11:01 AM
  #34  
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Old 15 January 2014, 08:13 PM
  #35  
kingtheydon
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The centre pin is supposed to be like that on a "SMD" transistor.

That middle pin is internally connected to the bug pad/solder point on the left. Helps act as a sort of built in heatsink, its actually connected to the "drain" on the transistor.

I can see your thinking that the leg should go down onto one of the pads labelled "C53" but it doesn't.
Old 02 February 2014, 05:59 PM
  #36  
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I have this exact fault on my 52 plate bug. I have bought a new module but don't seem to be able to find it in the car. Where shoud it be? Surely it wouldn't be removed when the alarm was fitted?

Cheers jared
Old 02 February 2014, 06:15 PM
  #37  
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Lay on your back on the floor on the drivers side, look up to the left you'll see the box there.
Old 02 February 2014, 06:18 PM
  #38  
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Had the bottom part of the dash off earlier couldn't see it lol. Is it near the column and own near the pedals?
Cheers jared
Old 02 February 2014, 06:22 PM
  #39  
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Originally Posted by distressedsk
The same issue, I had a little 1mm hole In the middle of that chip- tr30, could not take a pics with my previous phone.
ended up with new module
Old 02 February 2014, 06:28 PM
  #40  
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Originally Posted by tanjaz
Had the bottom part of the dash off earlier couldn't see it lol. Is it near the column and own near the pedals?
Cheers jared
You cant miss it,its in the white box wit one bolt.

Last edited by fawor; 02 February 2014 at 06:29 PM.
Old 02 February 2014, 06:30 PM
  #41  
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Originally Posted by tanjaz
Had the bottom part of the dash off earlier couldn't see it lol. Is it near the column and own near the pedals?
Cheers jared
It's virtually behind the fuse box location, laid on your back with pedals behind your head it will be slightly left, held on with one nut onto a bracket.
Old 02 February 2014, 06:57 PM
  #42  
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Hmmmm must be not there then. Will o back out and look now. Thanks chaps
Cheers jared
Old 04 February 2014, 07:37 PM
  #43  
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Well had another look and I definitely can't see it. My assumption is it was removed when the alarm was fitted. F@@k knows how to rectify it now lol

Cheers jaz
Old 25 January 2016, 12:51 PM
  #44  
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Bit of a thread revival, but thank you - replacing this module solved my dome light and ignition barrel light not working
Old 02 June 2018, 10:09 AM
  #45  
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Originally Posted by tanjaz
Well had another look and I definitely can't see it. My assumption is it was removed when the alarm was fitted. F@@k knows how to rectify it now lol

Cheers jaz
Have you had any progress on this? I think I'm in the same boat as you.

I know I have shorted something as I let 2 exposed wires touch when I was hooking up footwell LED lights to my dome light for them to act the same way.

I just cannot find where the module is that those dome light wires run too!

It is very annoying!

Any help would be greatly appreciated!
Old 02 June 2018, 10:28 AM
  #46  
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Originally Posted by BasalFuk
Have you had any progress on this? I think I'm in the same boat as you.

I know I have shorted something as I let 2 exposed wires touch when I was hooking up footwell LED lights to my dome light for them to act the same way.

I just cannot find where the module is that those dome light wires run too!

It is very annoying!

Any help would be greatly appreciated!
I've got an 05 impreza RS BTW
Old 09 January 2020, 11:38 PM
  #47  
Sofia Radlinger
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Originally Posted by fawor
I have opposite problem my keyring light gone and dome light in middle position when door are open dont light up.
Which fuse should i check (i did it twice and all looks ok)
looks like m/b fuse no2 which one is it?
Couldn't the interior light be fixed with the control unit (88251SA000)?

Did something have to be programmed?
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